How to install flame monitoring and flameout protection systems in gas-fired heaters and heat transfer oil heaters?
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The Emergency Management Department’s “Catalogue of Safety Classification and Rectification Measures for Hazardous Chemicals Enterprises (2020)” and “Catalogue of Obsolete Safety Production Processes, Technologies, and Equipment for Hazardous Chemicals (First Batch)” – 7. Gas heating furnaces and heat transfer oil furnaces without flame monitoring and flameout protection systems. What are the design standards for installing flame monitoring and flameout protection systems? Should flame detection be installed on each burner or within the furnace, and how should the interlock mechanism for flameout protection be designed? Please ask friends in the circle to help explain it, please!
The goal is to prevent flash explosions in areas where gas could create an explosive hazard; therefore, it should be installed at each burner
The design standards for configuring flame detection and flame-out protection systems are as follows: 1. \"GB50160-2018 Fire Protection Design Code for Petrochemical Enterprises\", Section 5.7.8 – Heating furnaces that use fuel gas should be equipped with a pilot light, and it is advisable to install a flame detector as well. 2. \"SY/T0538-2012 Specifications for Tubular Heating Furnaces\", Section 15.1.3 – Tubular furnaces shall have a proper ignition procedure control system as well as flame-out protection devices； 15.1.9 The tubular furnace shall be equipped with automatic protection devices, which shall be able to shut down the furnace automatically in the following situations: (e) when the flame in the furnace goes out. ” 3. “SY/T0524-2016 Specifications for Heat Transfer Oil Heating Furnace Systems”: “14.1.4 Heat transfer oil heating furnaces shall have a complete ignition procedure control system as well as furnace flame-out protection devices” ； 14.1.6 The heat transfer oil heating furnace system shall be equipped with automatic protection devices, which should be able to shut down the furnace automatically in case of any of the following situations: (f) when the flame in the furnace goes out. ” 4. Article 9.6.1 of the \"SY0031-2012 Safety Regulations for Heating Furnaces in the Petroleum Industry\": Heating furnaces that have access to electrical power supply should be equipped with a burner shutdown alarm device. ” 5. “GB/T19839-2005 General Technical Requirements for Industrial Fuel and Gas Burners” “4.5.5.1 In automatic control mode, the burner shall have at least the following safety interlock and alarm functions: b) For gas burners, in the event of the following conditions, the burner shall enter a locked state and emit audible and visual alarm signals: detection of a leak in the gas control valve, low pressure of the combustion air, low gas pressure, failure to ignite, or flame faults occurring after normal combustion has started””
For a more in-depth understanding, you can add Zhang on WeChat at 18553145196
Don’t you have a instrumentation workshop in your company?
Dear leader! I represent Hefei Jinxing Intelligent Control Technology Co., Ltd. Our company specializes in video flame monitoring and flame-out alarm systems for heating furnaces, as well as real-time online temperature monitoring and analysis systems for high-temperature furnace tubes, gas detection systems, and infrared thermal imaging temperature measurement systems. Feel free to contact me if you need any information. My name is Zhu Jiachun; my phone number is 13696518235 (the same number on WeChat). For high-temperature furnaces such as hydrogen production furnaces, delayed coking units, and ethylene cracking furnaces, it is advisable to consider using an online temperature monitoring system for the furnace tubes, as this can help determine the degree of coking in those tubes as well as provide alerts in case of overheating.